A Full-chain OpenSim Model and Its Application on Posture Analysis of an Overhead Drilling Task

Jing Chang (1, 2) , Damien Chablat (1, 2) , Fouad Bennis (1, 2) , Liang Ma (3)

1 LS2N - Laboratoire des Sciences du Numérique de Nantes
2 LS2N - équipe ReV - Robotique Et Vivant
3 THU - Tsinghua University [Beijing]

Biomechanical motion simulation and kinectic analysis of human joints and muscles provide insights into Musculoskeletal disorders. OpenSim is an open-source platform that give easy access to biome-chanical analysis, especially of muscles. The biomechanical analysis in OpenSim is based on pre-defined human models. Among the dozens of models available right now, none covers the muscles and joints of all the body parts. In view of the fact that most human motions are systemic, the lack of a comprehensive model prohibits synthesized and systemat-ical biomechanical analysis. The aim of this research is to develop an OpenSim model which enables the full-chain dynamic analysis of tasks involving multi-bodies. The model is developed based on two existing models. It consists of 45 body segments, 424 muscles and 39 degrees of freedom. The model was then used to simulate an overhead drilling task. Six drilling postures are analyzed, and the estimated joint moments and muscle activations are compared.

Mots clés: overhead work; muscle activation; joint moment; drilling posture; posture analysis; Biomechanical analysis; OpenSim model

Domaines: Robotique [cs.RO]

Jing Chang, Damien Chablat, Fouad Bennis, Liang Ma. A Full-chain OpenSim Model and Its Application on Posture Analysis of an Overhead Drilling Task. Vincent G. Duffy. Digital Human Modeling and Applications in Health, Safety, Ergonomics and Risk Management. Human Body and Motion, 11581, Springer, Cham, 2019, Digital Human Modeling and Applications in Health, Safety, Ergonomics and Risk Management. Human Body and Motion, 978-3-030-22215-4. ⟨hal-02014992⟩